Arsenal manager Arsene Wenger admits his side produced a weak defensive display against Norwich after being held to a 3-3 draw on Saturday.
The Canaries responded emphatically to Yossi Benayoun's opener after 65 seconds, with Wes Hoolahan and Grant Holt netting to put the visitors in control.
Gunners captain Robin van Persie came back with a double for the home side but Norwich substitute Steve Morison netted late on to earn Norwich a share of the spoils.
Wenger was disappointed by how his side defended, admitting they gave away too many opportunities.
"I felt defensively we made it easy for them today," he told Sky Sports.
"We gave too many chances away because defensively we were not very strong. But they played well and of course you give them credit."
Arsenal saw a penalty call turned down late on when it appeared Van Persie had been tripped by Kyle Naughton in the box, but Wenger says his side have got used to not being awarded penalties at home, having not been handed a spot-kick at Emirates Stadium all season.
Asked if they should have had a penalty, the manager replied: "I don't know. We know we don't get penalties here and we have put that in our head now and we have to accept it."
Arsenal now sit two points ahead of Tottenham and Newcastle in third place with their UEFA Champions League rivals in action on Sunday.
The Gunners could drop as low as fifth depending on results elsewhere but Wenger insists they will keep fighting when they travel to West Brom on the final day of the season.
He added: "We'll fight until the end. That's what we did today and we'll try to win our last game."